Two ultrasonic articles

[Esteban]

Oh man... you're an optimist ! it will be too cool... for us!

It's maybe 10years he posts bite-sized of stamp-sized circuits!

I cannot belive he will EVER post a complete LRL projects of any kind!

Kind regards,
Max

Also post complete MD schematics. Do you remember?

[Esteban]

That's the problem with him... you have to interpretate his words... it's silly that he now say that never wrote about AM mode...

ok... maybe it's FM mode!

And then ? Can't he simply correct me (us) if we are wrong... instead of playing that silly-game here...

Seems I have to do with a kid...

Problem is that he's probably well ahead from puberty!

But still need the ...ops... pacifier!

Maybe if I give him some candy he will reveal if it's FM or not!

Too sugar is bad...

Kind regards,
Max

No revelation you needed. Always I refer is FM radio. So, is not a secret.

[Esteban]

Somewhere I have an email from the final owner of Poptronix giving me permission to post complete articles from any of the old issues, which includes Popular Electronics. So post whatever you want.

- Carl

My vote is September 1964 issue.

Regards

Esteban

[Morgan]

TDA 7000

Who knows!

Many years ago I use good FM radio, but today seem the small radios in market are very "sintetized", not the old with many IF transformers.

The theme is to found a equal radio for all projects and maybe a TDA 7000 can be good for it.

http://www.escol.com.my/Projects/Pro...)/Proj-01.html

TDA 7000

connected to Zahori...or maybe the DCH...

[detectoman]

icant understand because max was he EE and cant understand this simple explanation and how should be the conexion
max have all the elements for build easy one lrl, only faulth ingredients comun sense
yo no entiendo como max siendo EE y con tanta experiencia y habiendo leeido tanto de esteban, y tanto acerca de los lrls, no puede entender como debera ser esa conjuncion para poder hacer funcionar
max intenta casar una pareja que no se conoce ja
es como querer llevar agua sin manguera
bueno yo solo soy teorico aun no saco mi primer boton

[Esteban]

icant understand because max was he EE and cant understand this simple explanation and how should be the conexion
max have all the elements for build easy one lrl, only faulth ingredients comun sense
yo no entiendo como max siendo EE y con tanta experiencia y habiendo leeido tanto de esteban, y tanto acerca de los lrls, no puede entender como debera ser esa conjuncion para poder hacer funcionar
max intenta casar una pareja que no se conoce ja
es como querer llevar agua sin manguera
bueno yo solo soy teorico aun no saco mi primer boton

Lee pero no atiende.

[Max]

Lee pero no atiende.

Always my fault... I read... then I don't make the proper things..!

Ok... I need FM... I'll switch the radio to FM... costs me few!

Just this or I have to make something else , also ?

Kind regards,
Max

[Max]

icant understand because max was he EE and cant understand this simple explanation and how should be the conexion
max have all the elements for build easy one lrl, only faulth ingredients comun sense
yo no entiendo como max siendo EE y con tanta experiencia y habiendo leeido tanto de esteban, y tanto acerca de los lrls, no puede entender como debera ser esa conjuncion para poder hacer funcionar
max intenta casar una pareja que no se conoce ja
es como querer llevar agua sin manguera
bueno yo solo soy teorico aun no saco mi primer boton

No quiero casarme cosas diferentes ... Quiero simplemente repetir que LRL maravilloso!

Saludos cordiales,
Max

[Esteban]

Always my fault... I read... then I don't make the proper things..!

Ok... I need FM... I'll switch the radio to FM... costs me few!

Just this or I have to make something else , also ?

Kind regards,
Max

Maybe this is not good site for to discuss it!

[Clondike Clad]

You sound like me

So now that I'm trying to realize one of your "designs" of LRLs... you refuse to give help! Fine!

Seems to me... that people here will read that as the fact this thing doesn't work detecting a coin at 7meters!

I was sure even before mounting that c.r.a.p. you have not provided any hint or advice to make it work... don't know why.

Now that I made that stupid circuit... that could be good as noise generator (maybe)... the hints and advices, the stamp-sized plans and circuits just vanished!?

Secrets ?

Which secrets... you say use IR , use toroids use bla bla... then when one "seriously" try to make one of these c.r.a.p. you don't make anymore such posts, uh ? Why ?

About AM radio... it's the one that let you hear that noise... or wanna use FM instead ???
Kind regards,
Max

I build many circuits and not one, NOT ONE.NOT ONE worked.
If you are like me you know HOW ELECTRONICS WORK.

You know as well as I do the BULL IS DEEP.
Now I will go back to lurking

[Theseus]

Maybe this is not good site for to discuss it!

Or, maybe it is a perfectly logical site to discuss it, but there is no desire to discuss it at a level where real knowledge and details are provided.

[Esteban]

I build many circuits and not one, NOT ONE.NOT ONE worked.
If you are like me you know HOW ELECTRONICS WORK.

You know as well as I do the BULL IS DEEP.
Now I will go back to lurking

Do you build many?

I build many and failed. I build many with success, but your persistence must be extraterrestrial. You must to think in things nobody think!

[J_Player]

I build many and failed. I build many with success, but your persistence must be extraterrestrial. You must to think in things nobody think!

Hi Esteban,
Your words are true. Your approach to building circuits for LRLs is not the same as most electronic engineers and experimenters would use. The people who use conventional methods will not have success with building your circuits because they are trying to design according to conventional designs, without considering the importance of the essential small signals that you look to capture. When Clondike Clad says "Not one worked", he is talking about other variations of LRL that he built from other people, not your designs. He does not have experience with using a radio receiver to monitor the audio frequency signal of an oscillator, (this method is not taught to experimenters, or in schools that teach electronics). I expect that people who cannot follow your instructions and build the circuitry as you described will not find success. The best they can do is to say the theories they were taught do not explain how your methods can work.

One problem with your previous posts is that you have not given a good description of the IR LED detector. I read your posts for IR metal detectors, and I see some confusing information. One example of confusing information is for the receiver. Here is what you previously explained about the receiver for the IR LED detector: "I think occurs a variation in height between the tone present in a receiver (this is filtrate as an interference in ANY sensitive system like a milivoltmeter). YOU DON'T NEED IR leds receiver. Also this filtrates in FM reveiver, and the signal of the target is directly in the beam or beams, no in the telescopic antenna, for example. But today maybe is not possible in this band (FM)".

http://www.geotech1.com/forums/showpost.php?p=58722&postcount=56

The words you posted give some information, but also makes a puzzle. What you posted tells us that the signal of the target is in the IR beam, not in a telescopic antenna, and can be heard on an FM receiver. But most portable FM radios use a telescopic antenna to receive their signals. This makes another puzzle of what to use for tuning the signal. When you say "today maybe is not possible in this band (FM)", This makes people think the FM will not work because you say maybe it is not possible, and the signal does not travel in the telescopic antenna. So they think maybe they must use AM for listening to the variation in the height of the tone that you say can be heard.

Also, you say there is a variation in the height between the tone present in the receiver. In English, this means the amplitude of the square wave is changing. But you later say that the phase is shifted. This is where you make the puzzle. Nobody knows what kind of change to look for... Amplitude or phase shift? Or maybe something else changed that Esteban did not tell us... maybe frequency? This makes some people think that a BFO detector will find the change, others think AM radio will detect the change of amplitude. Nobody knows what you have explained. This is not because they did not read your words. It is because your words are confusing. Many people would understand the IR LED detector if they had some clear explanation, but what you posted will lead most people to arrive at the wrong idea for how your IR LED detector works.

Best wishes,
J_P

[Max]

Hi Esteban,
Your words are true. Your approach to building circuits for LRLs is not the same as most electronic engineers and experimenters would use. The people who use conventional methods will not have success with building your circuits because they are trying to design according to conventional designs, without considering the importance of the essential small signals that you look to capture. When Clondike Clad says "Not one worked", he is talking about other variations of LRL that he built from other people, not your designs. He does not have experience with using a radio receiver to monitor the audio frequency signal of an oscillator, (this method is not taught to experimenters, or in schools that teach electronics). I expect that people who cannot follow your instructions and build the circuitry as you described will not find success. The best they can do is to say the theories they were taught do not explain how your methods can work.

One problem with your previous posts is that you have not given a good description of the IR LED detector. I read your posts for IR metal detectors, and I see some confusing information. One example of confusing information is for the receiver. Here is what you previously explained about the receiver for the IR LED detector: "I think occurs a variation in height between the tone present in a receiver (this is filtrate as an interference in ANY sensitive system like a milivoltmeter). YOU DON'T NEED IR leds receiver. Also this filtrates in FM reveiver, and the signal of the target is directly in the beam or beams, no in the telescopic antenna, for example. But today maybe is not possible in this band (FM)".

http://www.geotech1.com/forums/showpost.php?p=58722&postcount=56

The words you posted give some information, but also makes a puzzle. What you posted tells us that the signal of the target is in the IR beam, not in a telescopic antenna, and can be heard on an FM receiver. But most portable FM radios use a telescopic antenna to receive their signals. This makes another puzzle of what to use for tuning the signal. When you say "today maybe is not possible in this band (FM)", This makes people think the FM will not work because you say maybe it is not possible, and the signal does not travel in the telescopic antenna. So they think maybe they must use AM for listening to the variation in the height of the tone that you say can be heard.

Also, you say there is a variation in the height between the tone present in the receiver. In English, this means the amplitude of the square wave is changing. But you later say that the phase is shifted. This is where you make the puzzle. Nobody knows what kind of change to look for... Amplitude or phase shift? Or maybe something else changed that Esteban did not tell us... maybe frequency? This makes some people think that a BFO detector will find the change, others think AM radio will detect the change of amplitude. Nobody knows what you have explained. This is not because they did not read your words. It is because your words are confusing. Many people would understand the IR LED detector if they had some clear explanation, but what you posted will lead most people to arrive at the wrong idea for how your IR LED detector works.

Best wishes,
J_P

Hi,
yes, it's impossible replicate something that way... the key factors in such stuff are two:

1. understanding the theory or principle of operation
2. understanding how device is made to clone it without understanding theory

But from posts like above... you can't understand theory, nor you can't understand just how the device is made... so it's impossible make a clone of it... unless you'll discover something yourself during the process.

Now... if posts will be just pictures and confuse explainations nobody ever will make a perfect clone of that things... and nobody will understand anything.

That's cause this whole Remote Sensing forum is so subject to humor and comics... people don't understand... people can't verify anything...

What they (LRL guys) expect then from that context ???

Kind regards,
Max

[detectoman]

the esceptics have configured the mind in one different mode, so cant understand these simple things of the comun builders makers of lrl, may be too we cant build easy eg. one complex detector how headhammer of carl

es cosa curiosa que los escepticos no pueden construir un simple lrl, del cual se dan suficientes detalles, y es debido a la configuracion mental de ellos y su dificultad para entender el pensamiento objetivo, ellos los escepticos son diferentes como lo son los creyentes y los ateos
los ateos no pueden comprender A DIOS
for example i of children, always think possible build one machine for everything, and i understand the posibilite of build one lrl, may be others are negative to these posibilites
these is razon for difficult, because the configuration of the mind of EE is different to liricmakers
theist and atheist, is same what EE and lrlst
one lr detection video isnt, convincent for one scpetic
how , he st thomas' incredule
may be
best regards dman